Which of the following factors could cause an erroneous airspeed indication?

Question

PPL(A) - Private Pilot License - Aircraft General Knowledge - Which of the following factors could cause an erroneous airspeed indication?

QuizVDS · Accepted Answer

The aircraft is covered with adhesive foils

QuizVDS · Answer

A circuit breaker was pulled

QuizVDS · Answer

The earth wire is still attached

QuizVDS · Answer

The boost pressure line is defective

PPL(A) EN: Which of the following factors could cause an erroneous airspeed indication?